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问题 单项选择题

SNMP实体发送请求和应答报文的默认端VI号是 (49) ，SNMP代理发送陷入报文(trap)的默认端口号是 (50) 。

A．160
B．161
C．162
D．163

答案

参考答案：B

选择题

已知a、b互为相反数，c、d互为倒数，则代数式5（a+b）-2cd的值为（　　）

A．3

B．-2

C．-3

D．0
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阅读理解
阅读理解。
     Amy's family has fun. They mail a diary (日记簿、日记) to each other. Everyone writes something in it.
Amy's brother is open. He tells many things about his life. Amy's sister is Lazy. She doesn't write much.
Amy's dad writes stories. Her mom is talkative. She writes a lot. Everyone enjoys the diary.
 
   Hello, dear family! I am having a fun week here at The Mall. I had lunch with Pan and Jack on
Monday. On Tuesday, I designed a new dress. Yesterday, Tom told me a funny joke. He always
makes me laugh!
 
     Hi, all! Last week I was feeling sad. I had a bad day at work. My boss was angry at me. But
the next day was better. I did a good job and my boss was very happy, so I felt better. Sometimes
my work is hard. But I am really thankful for my job.
 
      Hello! I miss you all. However, I don't have much time to write this week. I'll write more next
time. Bye, everyone!
    
    Hi, everyone! I made a chocolate cake yesterday. That's Amy's favorite. I wish I could mail you
a piece, Amy! It's really delicious. Today was warm and sunny. Your father and I went for a walk in
the park. We also waited your Aunt Betty. She told us some good news. Your cousin John got a new
Job! Oh, I'm writing too much, aren't I? We really miss you all. Take care! 

     Dear ones, let me tell you a story. A long, long time ago, A man lived a house on a hill. He
had a candle. He lit the candle every night. Everyone could see the light. Then one night, something
wonderful happened…
1. Where do Amy's family members write their diaries?
A. On the same family diary.
B. On their own diaries.
C. On Amy's diary.
D. On Mother's diary.
2. When did Amy design a new dress?
A. On Monday.
B. On Tuesday.
C. Yesterday.
D. Today.
3. What does the brother think of his job?
A. The job makes him sad.
B. The job always gives him pleasure.
C. The job is too easy.
D. The job is a challenge.
4. What did the mother do today?
A. She made a chocolate cake.
B. She did nothing but walk in the park.
C. She got a new job.
D. She went for a walk and visited Aunt Betty.
5. What's the best title for the passage?
A. Amy and her family.
B. Amy and her diary.
C. A family's diary.
D. Amy's father writes stories.
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